diff --git a/deno.json b/deno.json
index a5f1112..65ab85f 100644
--- a/deno.json
+++ b/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@quentinadam/zip",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "license": "MIT",
   "exports": "./zip.ts",
   "imports": {
diff --git a/zip.ts b/zip.ts
index 2f9e1b9..201a005 100644
--- a/zip.ts
+++ b/zip.ts
@@ -390,9 +390,9 @@ export async function create(
         return { data: file.data, compressed: false };
       }
     })();
-    const { lastModificationDate, lastModificationTime } = file.lastModification !== undefined
-      ? serializeLastModification(file.lastModification)
-      : { lastModificationDate: 0, lastModificationTime: 0 };
+    const { lastModificationDate, lastModificationTime } = serializeLastModification(
+      file.lastModification ?? new Date(),
+    );
     const entry = {
       version: 45,
       requiredVersion: 20,